Fire extinguishing and rescue throwing type unmanned aerial vehicle

Abstract

The invention discloses a fire extinguishing and rescue throwing type unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a support fixedly arranged at the bottom of the unmanned aerial vehicle body, a spraying and swinging mechanism arranged on the support, a driving assembly used for driving the spraying and swinging mechanism to act and a fire extinguishing bomb throwing assembly arranged at the bottom of the support. The spraying and swinging mechanism comprises a rotating shaft installed in the support, a sliding rail fixedly arranged on the side wall of the rotating shaft, a sliding block, a swinging frame fixedly arranged on the side wall of the sliding block and a spraying head fixedly installed at one end of the swinging frame. Dynamic surface spraying and static point throwing are organically combined, so that the unmanned aerial vehicle can cope with various complex fire behaviors, the spraying mode can efficiently suppress large-area open fire, the fire extinguishing bomb can strike a hidden fire source or serve as a powerful supplement, the whole device is compact in structure, and the task adaptability and the comprehensive fire extinguishing efficiency of the fire-fighting unmanned aerial vehicle are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of firefighting and rescue equipment technology, specifically to a firefighting and rescue delivery drone. Background Technology

[0002] With the development of drone technology, it has shown unique application value in fire fighting, especially in high-rise buildings, the initial stage of forest fires, and dangerous chemical accidents and other inaccessible scenarios. Existing fire fighting drones are mainly divided into two categories: one is drones equipped with liquid fire extinguishing agent storage tanks and spraying systems, and the other is drones equipped with fire extinguishing bombs.

[0003] The first type of liquid spraying drones mostly have fixed nozzles or can only perform simple horizontal reciprocating swings. This spraying mode covers a limited area of ​​flames. Especially when facing three-dimensional fires or when rapid fire suppression is required, the fixed spraying trajectory is difficult to form effective three-dimensional coverage, and the fire extinguishing efficiency needs to be improved. At the same time, the single spraying method also limits its adaptability to different types of fire sources.

[0004] The second type of fire extinguishing bomb delivery drone typically uses a simple release mechanism to drop the fire extinguishing bombs directly from the air. This method has low accuracy, the fire extinguishing bombs land in scattered locations, and it is difficult to deliver them to the core area of ​​the fire source. This may result in waste of fire extinguishing agents or the risk of secondary disasters. In addition, single-function drones are not adaptable enough to the complex and ever-changing fire situation. Different types of drones are often required to work together, which increases the difficulty and cost of command and coordination.

[0005] Therefore, there is an urgent need for a multi-functional firefighting drone that integrates wide-area, three-dimensional spraying capabilities with precise and controllable delivery capabilities to overcome the shortcomings of existing technologies, such as single firefighting mode, uneven coverage, and insufficient mission adaptability. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a fire-fighting and rescue delivery drone, which solves the problems of limited fire-fighting modes, uneven coverage, and insufficient mission adaptability in existing technologies.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides a fire-fighting and rescue delivery drone, comprising a drone body, a bracket fixedly mounted on the bottom of the drone body, a spraying and swaying mechanism mounted on the bracket, a drive component for driving the spraying and swaying mechanism, and a fire extinguishing bomb delivery component mounted on the bottom of the bracket.

[0008] The spraying oscillating mechanism includes a rotating shaft vertically rotatably installed in the bracket, a slide rail fixedly disposed on the side wall of the rotating shaft along the axial direction of the rotating shaft, a slider slidably disposed on the slide rail, an oscillating frame fixedly disposed on the side wall of the slider, and a nozzle fixedly installed on one end of the oscillating frame away from the rotating shaft. An arc-shaped plate is fixedly installed inside the bracket, and a wave groove is opened on the arc-shaped plate. The swing frame passes through the wave groove and can slide along it. The drive assembly drives the rotating shaft to reciprocate, causing the swing frame and the nozzle to swing back and forth. At the same time, the swing frame is constrained by the contour of the wave groove, causing the slider to slide up and down synchronously along the slide rail, thereby causing the spray direction of the nozzle to swing periodically to expand the coverage area. The fire extinguishing bomb delivery assembly is used to deliver fire extinguishing bombs to the fire site at a fixed point.

[0009] This invention proposes a fire-fighting and rescue delivery drone. When performing a fire-fighting mission, the drone flies over the fire site, the spraying system is activated, and the drive component drives the rotating shaft to reciprocate within a certain angle. The rotating shaft drives the slide rail, slider, and swing frame on it to swing left and right. At the same time, the swing frame passes through the arc-shaped plate wave groove fixed on the support. Its movement is constrained by the wave groove. When the swing frame swings left and right with the rotating shaft, it moves along the trajectory of the wave groove. Therefore, the slider is forced to slide up and down on the slide rail, thereby driving the nozzle to perform a periodic up and down undulating motion on top of the left and right swing. Finally, the fire extinguishing liquid sprayed by the nozzle will form a three-dimensional, dynamic sweeping coverage area, enhancing the coverage area and penetration of a single spray. At the same time, the fire extinguishing bomb delivery component can deliver fire extinguishing bombs to the core of the fire or specific locations that are difficult to directly target with the swing spray, forming a composite fire extinguishing mode that combines area coverage and point strike.

[0010] Optionally, the drive assembly includes a first motor fixedly mounted on the bracket, a turntable connected to the drive shaft of the first motor, a follower shaft eccentrically mounted on the turntable, and a swing connection structure disposed on the turntable; the follower shaft is connected to the turntable through the swing connection structure to convert the rotational motion of the turntable into the reciprocating rotational motion of the turntable.

[0011] The first motor provides continuous rotational power, driving the turntable to rotate at a constant speed. The follower shaft installed at the eccentric position of the turntable moves in a circular motion with the turntable. The follower shaft transmits the circular motion to the rotating shaft through the swing connection structure. Due to the limitation of the connection method, the rotating shaft cannot rotate a full circle, but is forced to swing back and forth within a certain sector angle, thereby realizing the horizontal swing drive of the nozzle base and converting continuous rotation into reciprocating swing.

[0012] Optionally, the swing connection structure includes a pair of bearing seats fixedly installed on the side wall of the rotating shaft, and a swing shaft installed between the pair of bearing seats and parallel to the rotating shaft; the end of the follower shaft is provided with a sliding sleeve sleeved on the swing shaft and slidable along the axial direction of the swing shaft.

[0013] The sliding sleeve at the end of the follower shaft is slidably fitted onto the swing shaft. When the turntable drives the follower shaft to make a circular motion, the sliding sleeve slides back and forth on the swing shaft, while simultaneously pushing the swing shaft and the rotating shaft connected to it to make a reciprocating swing.

[0014] Optionally, the fire extinguishing bomb dispensing assembly includes a storage cylinder that is tilted and fixed below the support, a plurality of fire extinguishing bombs disposed inside the storage cylinder and capable of rolling towards the bottom of the cylinder under its tilting action, and a pushing mechanism disposed on the storage cylinder for pushing the fire extinguishing bombs out of the dispensing port; the dispensing port is disposed at the higher end of the storage cylinder.

[0015] The storage cylinder is installed at an angle, and the fire extinguishing bombs automatically roll and gather at the bottom of the cylinder under gravity. When the pushing mechanism is working, it can push out the fire extinguishing bomb closest to the delivery port.

[0016] Optionally, the pushing mechanism includes a drive motor disposed on the outside of the storage cylinder, a screw driven by the drive motor, a movable block threadedly connected to the screw, and a pushing claw; a pair of supports are provided on the side wall of the storage cylinder, the screw is rotatably mounted between the pair of supports, a sliding groove is provided on the side wall of the storage cylinder, the movable block is slidably connected to the sliding groove, and one end of the sliding block extends through the sliding groove into the storage cylinder and is connected to the pushing claw, the drive motor drives the screw to rotate, thereby causing the pushing claw to move along the axial direction of the storage cylinder to push out the fire extinguishing bomb.

[0017] The drive motor drives the screw to rotate, and the moving block that cooperates with the screw converts the rotational motion into linear motion under the constraint of the slide groove. The moving block drives the pusher claw that extends into the cylinder to move along the cylinder axis. The pusher claw abuts against the fire extinguishing bomb and pushes the fire extinguishing bomb at the front end out of the release port, thus realizing the release of the fire extinguishing bomb.

[0018] Optionally, the storage cylinder is provided with a shielding mechanism at the dispensing port for closing the dispensing port when not dispensing.

[0019] The shielding mechanism can close the delivery port during non-delivery missions to prevent fire extinguishing bombs from falling accidentally, thus improving flight and operational safety.

[0020] Optionally, the shielding mechanism includes a shielding ring detachably installed at the delivery port and a plurality of elastic pieces spaced circumferentially on the inner wall of the shielding ring; the plurality of elastic pieces together close the delivery port and can be elastically folded outward under the compression of the fire extinguishing bomb to allow it to pass through.

[0021] In its natural state, the elastic sheet converges towards the center, forming a flexible seal around the delivery port. When the pushing mechanism forcefully pushes out the fire extinguishing bomb, the head of the fire extinguishing bomb squeezes the elastic sheet, causing it to elastically fold outward and open the channel. After the fire extinguishing bomb passes through, the elastic sheet quickly returns to its closed state due to its own elasticity.

[0022] Optionally, the shielding ring is threadedly connected to the dispensing port end of the storage cylinder.

[0023] The threaded connection facilitates the installation and removal of the shielding ring. When it is necessary to refill the storage cylinder with fire extinguishing bombs, the shielding ring can be unscrewed, making the operation convenient.

[0024] Optionally, the nozzle is connected to an external water source via a flexible water supply pipe.

[0025] Optionally, the inner diameter of the storage cylinder matches the outer diameter of the fire extinguishing bomb, and a plurality of the fire extinguishing bombs are arranged in a single linear row inside the storage cylinder.

[0026] The matching inner diameters allow the fire extinguishing bombs to be arranged in a single, tight row inside the tube. This prevents the fire extinguishing bombs from shaking or rolling inside the tube and affecting their posture, while also ensuring that the pusher claws can always target the fire extinguishing bomb at the very front, achieving sequential and reliable delivery.

[0027] (III) Beneficial Effects The beneficial effects of this invention are as follows: The fire-fighting and rescue delivery drone of this invention integrates three-dimensional spraying and delivery functions. The spraying swing mechanism drives the rotating shaft to rotate back and forth through the drive component, realizing the horizontal basic swing of the nozzle. At the same time, the wave groove on the fixed arc plate constrains the movement trajectory of the swing frame, transforming the horizontal swing into a composite motion in the horizontal and vertical directions, so that the nozzle spray trajectory sweeps in a spatial wave shape, which greatly expands the three-dimensional coverage range of the fire extinguishing agent and improves the operation efficiency.

[0028] The fire extinguishing bomb delivery assembly adopts an inclined storage cylinder design, relying on gravity for storage. The structure is simple and reliable. The pushing mechanism is driven by a screw, and the pushing process is smooth. Combined with the elastic shielding mechanism at the delivery port, it realizes the safe storage and controllable directional delivery of the fire extinguishing bomb, ensuring that the fire extinguishing bomb is pushed to the target fire point.

[0029] This invention achieves an organic combination of dynamic surface spraying and static point delivery, enabling a single drone to handle various complex fire situations. The spraying mode can efficiently suppress large-area open flames, while the fire extinguishing bombs can accurately strike hidden fire sources or serve as a powerful supplement. The overall device has a compact structure, significantly improving the mission adaptability and comprehensive fire extinguishing efficiency of firefighting drones. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Figure 2 This is a side view of the structure of the present invention.

[0032] Figure 3 This is a schematic diagram of the arc-shaped plate of the present invention.

[0033] Figure 4 This is a schematic diagram of the structure of the driving component of the present invention.

[0034] In the diagram: 1. UAV body; 2. Support frame; 3. Rotary shaft; 4. Slide rail; 5. Slider; 6. Swing frame; 7. Nozzle; 8. Arc plate; 9. Wave groove; 10. First motor; 11. Turntable; 12. Follower shaft; 13. Shaft seat; 14. Swing shaft; 15. Sliding sleeve; 16. Storage cylinder; 17. Fire extinguishing bomb; 18. Drive motor; 19. Screw; 20. Moving block; 21. Push claw; 22. Slide groove; 23. Shielding ring; 24. Elastic sheet. Detailed Implementation

[0035] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The fire-fighting and rescue delivery drone proposed in this invention integrates a spraying and swinging mechanism capable of generating a composite motion trajectory with a delivery system capable of orderly delivery of fire extinguishing bombs. The spraying mechanism uses a motor, turntable, and eccentric shaft to drive the rotating shaft to swing back and forth as the basic power source, and introduces a fixed arc plate with a wave groove as a motion trajectory constraint. When the swinging frame carrying the nozzle swings with the rotating shaft, the part passing through the wave groove is forced to move along the groove, thereby decomposing and synthesizing the single horizontal swing into a composite motion including up and down undulations, ultimately enabling the nozzle jet to form an effective three-dimensional coverage. The fire extinguishing bomb delivery system achieves safe storage and fixed-point delivery through the control of gravity and motor push rod. The combination of the two aims to provide a fire-fighting drone with a wide coverage and multiple functions.

[0037] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0038] Please see Figures 1-4The present invention provides a technical solution: a fire-fighting and rescue delivery drone, wherein the drone body 1 is a multi-rotor flight platform with autonomous flight and hovering capabilities, and a rigid bracket 2 is fixed at the bottom of the drone body 1 by a quick-release interface or bolts, and the bracket 2 forms an installation chamber inside.

[0039] The main body of the spraying swing mechanism is located in the chamber. A rotating shaft 3 is vertically mounted in the bracket 2 via two bearings. A vertical linear slide rail 4 is welded and fixed to the side of the rotating shaft 3. A slider 5 forms a sliding pair with the slide rail 4 and can slide up and down along the slide rail 4. A swing frame 6 is welded and fixed to the side of the slider 5. A nozzle 7 is bolted to one end of the swing frame 6. The nozzle 7 is connected to an external water source through a flexible high-pressure water pipe, and the spray pressure is provided by an external water source booster pump.

[0040] Inside the cavity of the bracket 2, an arc-shaped plate 8 is fixedly installed in front of the rotating shaft 3. The center of the arc-shaped plate 8 coincides with the axis of the rotating shaft 3. A wave-shaped groove is opened on the arc-shaped plate 8. The swing frame 6 passes through this wave-shaped groove 9 and can slide freely in the groove.

[0041] The drive assembly is used to drive the rotating shaft 3 to swing. A first motor 10 is fixed on the outside of the bracket 2. The output shaft of the motor is connected to a circular turntable 11. On the turntable 11, a short shaft is installed off-center as a follower shaft 12. On the side of the rotating shaft 3, a pair of parallel bearing seats 13 are welded. A swing shaft 14 is vertically installed between the pair of bearing seats 13. A sliding sleeve 15 is installed at the end of the follower shaft 12. The sliding sleeve 15 is slidably fitted on the swing shaft 14.

[0042] The fire extinguishing bomb 17 delivery assembly is installed at the bottom of the bracket 2. A storage cylinder 16 is fixed at an angle below the bracket 2 by a clamp. Its axis is at a certain angle to the horizontal plane, and the high-end delivery port is slightly higher than the low-end closed bottom end. The inner diameter of the storage cylinder 16 is slightly larger than the diameter of the fire extinguishing bomb 17, which can hold multiple fire extinguishing bombs 17 arranged in a single linear row. Under the action of gravity, the fire extinguishing bombs 17 automatically roll towards the low end and are closely arranged.

[0043] On the outside of the storage cylinder 16, a pushing mechanism is installed. A drive motor 18 is fixed on the bracket 2, and its output shaft is connected to a screw 19 through a coupling. The screw 19 is supported by a pair of supports, and its axis is parallel to the axis of the storage cylinder 16. A long strip-shaped groove 22 is opened on the side wall of the storage cylinder 16 along the axial direction. A moving block 20 has internal threads that cooperate with the screw 19, and external protrusions that are embedded in the groove 22 of the storage cylinder 16, restricting its movement to only along the axial direction. A pushing claw 21 is connected to the inner side of the moving block 20. The pushing claw 21 extends into the inside of the storage cylinder 16, and its front end shape is adapted to the tail of the fire extinguishing bomb 17. At the release port end of the storage cylinder 16, a blocking ring 23 is connected by threads. Multiple elastic plates 24 are evenly distributed circumferentially on the inner wall of the blocking ring 23. In the natural state, these elastic plates 24 retract towards the center to close the release port.

[0044] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below. Example

[0045] When a large area of ​​liquid coverage is required at a fire site, the drone flies to a suitable altitude above the fire site and hovers, starting the first motor 10. The motor drives the turntable 11 to rotate at a constant speed, and the eccentric follower shaft 12 on the turntable 11 moves in a circular motion. The sliding sleeve 15 at the end of the follower shaft 12 slides on the swing shaft 14, simultaneously pushing the swing shaft 14 and the rotating shaft 3 fixed to it to swing back and forth within a certain angle. The rotating shaft 3 drives the slide rail 4, the slider 5 and the entire swing frame 6 to swing left and right. Since the horizontal arm of the swing frame 6 is inserted into the fixed wave groove 9, when it swings left and right, it must follow the undulating trajectory of the wave groove 9. Therefore, while the slider 5 swings left and right with the rotating shaft 3, it must slide up and down along the vertical slide rail 4, so that the nozzle 7 installed at the end of the swing frame 6 moves as a combination of horizontal swing and vertical undulation, and the sprayed extinguishing agent forms a dynamically changing three-dimensional coverage area.

[0046] When a concealed fire requiring focused strikes is detected, or when fire extinguishing bombs 17 need to be deployed, the UAV adjusts its position so that the deployment port is roughly aligned with the target area. The control drive motor 18 is activated, and the motor drives the screw 19 to rotate. The moving block 20, which is threadedly engaged with the screw 19, moves along the axis of the storage cylinder 16 towards the deployment port under the constraint of the slide groove 22. The moving block 20 drives the pusher claw 21 forward, and the pusher claw 21 presses against the fire extinguishing bomb 17. Under the continuous drive of the screw 19, the pusher claw 21 pushes the fire extinguishing bomb 17 at the foremost position forward. The head of the fire extinguishing bomb 17 at the foremost position presses against the elastic plate 24 inside the shielding ring 23. The elastic plate 24 elastically folds outward, opening the channel. After the fire extinguishing bomb 17 is completely pushed out of the deployment port, the elastic plate 24 returns to its original position by its own elasticity, re-closing the deployment port to prevent the next fire extinguishing bomb 17 from accidentally slipping out. The pushed fire extinguishing bomb 17 falls towards the target fire.

[0047] In actual rescue operations, the spraying and oscillating mechanism can be used to suppress and cool the fire over a large area as needed. At the same time, the fire situation can be observed, and if stubborn fire spots are found, they can be precisely targeted by the fire extinguishing bomb dropping mode. The two modes can be quickly switched or alternated to achieve efficient and coordinated fire extinguishing.

[0048] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fire-fighting and rescue delivery drone, characterized in that, It includes a drone body (1), a bracket (2) fixedly installed at the bottom of the drone body (1), a spraying and swinging mechanism installed on the bracket (2), a drive component for driving the spraying and swinging mechanism, and a fire extinguishing bomb delivery component installed at the bottom of the bracket (2). The spraying swing mechanism includes a rotating shaft (3) vertically rotatably installed in the bracket (2), a slide rail (4) fixedly installed on the side wall of the rotating shaft (3) along the axial direction of the rotating shaft (3), a slider (5) slidably installed on the slide rail (4), a swing frame (6) fixedly installed on the side wall of the slider (5), and a nozzle (7) fixedly installed on the swing frame (6) away from the rotating shaft (3); An arc-shaped plate (8) is fixedly installed inside the bracket (2). A wave groove (9) is provided on the arc-shaped plate (8). The swing frame (6) passes through the wave groove (9) and can slide along it. The drive assembly drives the rotating shaft (3) to rotate back and forth, causing the swing frame (6) and the nozzle (7) to swing back and forth. At the same time, the swing frame (6) is constrained by the contour of the wave groove (9), causing the slider (5) to drive the swing frame (6) to slide up and down synchronously along the slide rail (4), thereby causing the spray direction of the nozzle (7) to swing periodically to expand the coverage area.

2. The firefighting and rescue delivery drone according to claim 1, characterized in that, The drive assembly includes a first motor (10) fixedly mounted on the bracket (2), a turntable (11) connected to the drive shaft of the first motor (10), a follower shaft (12) eccentrically mounted on the turntable (11), and a swing connection structure disposed on the rotating shaft (3); the follower shaft (12) is connected to the rotating shaft (3) through the swing connection structure, and converts the rotational motion of the turntable (11) into the reciprocating rotational motion of the rotating shaft (3).

3. The firefighting and rescue delivery drone according to claim 2, characterized in that, The swing connection structure includes a pair of bearing seats (13) fixedly installed on the side wall of the rotating shaft (3), and a swing shaft (14) installed between the pair of bearing seats (13) and parallel to the rotating shaft (3); the end of the follower shaft (12) is provided with a sliding sleeve (15) sleeved on the swing shaft (14) and slidable along the axial direction of the swing shaft (14).

4. The firefighting and rescue delivery drone according to claim 1, characterized in that, The fire extinguishing bomb delivery assembly includes a storage cylinder (16) that is tilted and fixed below the support (2), a plurality of fire extinguishing bombs (17) disposed in the storage cylinder (16) and capable of rolling towards the bottom of the cylinder under its tilting action, and a pushing mechanism disposed on the storage cylinder (16) for pushing the fire extinguishing bombs (17) out of the delivery port; the delivery port is disposed at the higher end of the storage cylinder (16).

5. The firefighting and rescue delivery drone according to claim 4, characterized in that, The pushing mechanism includes a drive motor (18) disposed on the outside of the storage cylinder (16), a screw (19) driven by the drive motor (18), a moving block (20) threadedly connected to the screw (19), and a pushing claw (21); a pair of supports are provided on the side wall of the storage cylinder (16), the screw (19) is rotatably installed between the pair of supports, a sliding groove (22) is provided on the side wall of the storage cylinder (16), the moving block (20) is slidably connected to the sliding groove (22), and one end of the slider (5) passes through the sliding groove (22) and extends into the storage cylinder (16) and is connected to the pushing claw (21). The drive motor (18) drives the screw (19) to rotate, thereby driving the pushing claw (21) to move along the axial direction of the storage cylinder (16) to push out the fire extinguishing bomb (17).

6. The firefighting and rescue delivery drone according to claim 5, characterized in that, The storage cylinder (16) is provided with a shielding mechanism at the dispensing port for closing the dispensing port when not dispensing.

7. The firefighting and rescue delivery drone according to claim 6, characterized in that, The shielding mechanism includes a shielding ring (23) detachably installed at the delivery port, and a plurality of elastic pieces (24) spaced circumferentially on the inner wall of the shielding ring (23); the plurality of elastic pieces (24) together close the delivery port, and can be elastically folded outward under the compression of the fire extinguishing bomb (17) to allow it to pass through.

8. The firefighting and rescue delivery drone according to claim 7, characterized in that, The shielding ring (23) is connected to the dispensing port end of the storage cylinder (16) by a thread.

9. The firefighting and rescue delivery drone according to claim 1, characterized in that, The nozzle (7) is connected to an external water source via a flexible water supply pipe.

10. The firefighting and rescue delivery drone according to claim 4, characterized in that, The inner diameter of the storage cylinder (16) matches the outer diameter of the fire extinguishing bomb (17), and a plurality of the fire extinguishing bombs (17) are arranged in a single linear row inside the storage cylinder (16).

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